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[eslint] Don't crash on multiple @babel/parser
copies
#13274
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nicolo-ribaudo
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babel:main
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nicolo-ribaudo:eslint-duplicated-parser
May 6, 2021
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13 changes: 13 additions & 0 deletions
13
eslint/babel-eslint-tests/test/fixtures/duplicated-babel-parser/.eslintrc.js
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,13 @@ | ||
module.exports = { | ||
root: true, | ||
parser: "@babel/eslint-parser", | ||
parserOptions: { | ||
babelOptions: { | ||
configFile: __dirname + "/babel.config.js", | ||
sourceType: "module", | ||
}, | ||
}, | ||
rules: { | ||
"template-curly-spacing": "error", | ||
}, | ||
}; |
5 changes: 5 additions & 0 deletions
5
eslint/babel-eslint-tests/test/fixtures/duplicated-babel-parser/a.js
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,5 @@ | ||
import { func1 } from "./iodex.js"; | ||
|
||
export function five() { | ||
return { five: `number(${5})` }; | ||
} |
7 changes: 7 additions & 0 deletions
7
eslint/babel-eslint-tests/test/fixtures/duplicated-babel-parser/babel.config.js
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,7 @@ | ||
module.exports = { | ||
plugins: [ | ||
() => ({ | ||
parserOverride: require("npm-babel-parser").parse, | ||
}), | ||
], | ||
}; |
17 changes: 17 additions & 0 deletions
17
eslint/babel-eslint-tests/test/integration/duplicated-babel-parser.js
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,17 @@ | ||
import eslint from "eslint"; | ||
import path from "path"; | ||
import { fileURLToPath } from "url"; | ||
|
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describe("https://github.com/babel/babel/issues/12985", () => { | ||
it("works with different copies of @babel/parser", () => { | ||
const engine = new eslint.CLIEngine({ ignore: false }); | ||
expect(() => | ||
engine.executeOnFiles([ | ||
path.resolve( | ||
path.dirname(fileURLToPath(import.meta.url)), | ||
`../fixtures/duplicated-babel-parser/a.js`, | ||
), | ||
]), | ||
).not.toThrow(); | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. This throws without the fix (it's the example from #12985 (comment)) |
||
}); | ||
}); |
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Do we want to try to figure out a way to test this? Would it work to just manually set
process.env.BABEL_8_BREAKING
in our tests?There was a problem hiding this comment.
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Yeah, it's tested by the "Test Babel 8 breaking changes" job (even if it doesn't show up in codecov).
When running locally, you can use
BABEL_8_BREAKING=true make test
.